Reduced gas holdup in an ebullated bed reactor
US5308476A · kind A · utility
11Cited by
31References
8Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Nov 4, 1991 |
| Grant date | May 3, 1994 |
| Priority date | — |
| Expiry date | Nov 4, 2011 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC10G45/16
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
A resid refining reactor has an ebullated catalyst bed. Hydrogen gas is released into the catalyst bed at a point which is far enough above a distributor plate at the bottom of the catalyst bed to form a gas updraft in a committed zone through the bed. This committed updraft causes a reduction in gas holdup which increases the residence time of a liquid phase in the catalyst bed.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.